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Murrr4er [49]
3 years ago
12

A projectile is thrown upward so that its distance above the ground after t seconds is given by the function h(t) = -16t^2 640t.

after how many seconds does the projectile take to reach its maximum height?
Mathematics
1 answer:
Nataly_w [17]3 years ago
4 0
- <span>A </span>projectile<span> is </span>thrown upward so<span> that </span>its distance above<span> the </span>ground after t seconds<span> is </span>given<span> by the </span>function h(t<span>) = - 16t² + </span>640t<span>. </span>After<span> how </span>many seconds<span> does the </span>projectile<span>take</span><span> to reach </span>its<span> maximum height? I made the </span>function<span> .</span>
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Henry is making a recipe for biscuits.A recipe calls for 5/10 kilogram flour and 9/10 kilogram sugar.If henry measures correctly
mote1985 [20]

Answer: \dfrac{14}{10}\ kg

Step-by-step explanation:

Given

Henry has \frac{5}{10}\ kg of flour and \frac{9}{10}\ kg of sugar

If henry added the two amounts, the net weight of the two is

\Rightarrow W_{net}=\dfrac{5}{10}+\dfrac{9}{10}\\\\\Rightarrow W_{net}=\dfrac{5+9}{10}=\dfrac{14}{10}\ kg\ \text{or}\ \dfrac{7}{5}\ kg

8 0
3 years ago
Consider the rational number 3/11 a. What are the value of a and b in a divide by b when you use division to find the decimal fo
PolarNik [594]

Answer:

The decimal form of this rational number is 0.\overline {27}.

Step-by-step explanation:

a) Let \frac{a}{b} a rational number. From statement we understand that a represents the numerator, while b corresponds with the denominator of the rational number. Hence, a is 3 and b is 11.

b) The decimal form is obtained by dividing a by b, we presented the step needed to determine the decimal form:

i) Multiply the numerator by 10:

Dividend: 30/Divisor: 11/Known result: 0. /Residue: N/A

ii) Multiply the divisor by 2 and subtract from the dividend:

Known result: 0.2 /Residue: 8

iii) Multiply the residue by 10:

Known result: 0.2 /Residue: 80

iv) Multiply the divisor by 7 and subtract from the residue:

Known result: 0.27 /Residue: 3

v) Multiply the residue by 10:

Known result: 0.27 /Residue: 30

vi) Multiply the divisor by 2 and subtract from the residue:

Known result: 0.272/Residue: 8

vii) Multiply the residue by 10:

Known result: 0.272 /Residue: 80

viii) Multiply the divisor by 7 and subtract from the residue:

Known result: 0.2727/Residue: 3

We have notice that the decimal form of \frac{3}{11} is a periodical decimal number. Hence, we conclude that decimal form of this rational number is 0.\overline {27}.

3 0
2 years ago
**PLEASE ANSWER** 20 POINTS, Rebeka claimed the equation 3x + 4 = 10 has two solutions. Explain the error in Rebeka’s claim.
Savatey [412]

Answer:

x=2

Step-by-step explanation:

3x+4=10

subtract four on both sides, you will get 3x=6, divide by three on both sides, x=2

7 0
3 years ago
5/8 divided 2 1/2 simply
Ksenya-84 [330]

Answer:

1/4

Step-by-step explanation:

Turn 2 1/2 into an improper fraction

5/2

Flip 5/2 to 2/5

Multiply 5/8 by 2/5

The answer is 10/40

Simplify

1/4

Hope this helped :)

5 0
3 years ago
PLSSS HLEPP ME OUTT ITS URGENTTTT​
8090 [49]
Let the numbers be 7x and 4x
According to question
7x-4x =57
3x =57
X=57/3
X=19
So the numbers are
7x=7*19=133
4x=4*19=76
6 0
3 years ago
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